Into winter, putty paint construction to do so!

01
two elements of coating molding is a process of evaporation and drying of water, moisture volatile coating began to form a film. Therefore, the coating drying molding effect is good or bad, fast and slow, the most important is the temperature and humidity of the environment.
when the surface moisture dry we call it table dry, this time the coating has the initial protection performance and "water resistance"

. When the moisture in the coating is completely dry, we call it dry, the paint performance reaches the maximum.
in the national experimental testing standards (23 degrees C and 45-60% relative humidity) ordinary coatings to 7 days, elastic coatings and real stone paint and other thick coatings to 14 days.
in the actual environment, summer temperature after 3 days of dry performance is very good, winter temperature needs to be extended to more than 5 days, if rainy weather paint dry slow also need longer time.
02
paint storage several points
normal paint storage time: real stone paint and other sand and stone category for up to 1 year, preferably used up within six months, otherwise there will be real stone paint more and more thick, dry and other problems. Latex paint can be stored for up to 3 years. Normal coating storage environment: temperature 5-35 degrees Celsius, winter to avoid paint freezing, especially during the New Year.
the actual environment, manufacturers will do low-temperature storage performance design, in the case of -5 degrees C do not freeze. Therefore, in winter, the storage of paint is best stored indoors, to avoid temperature below 0 degrees C, otherwise it is easy to appear paint icing or milk breaking phenomenon, resulting in paint can not be used.
it is important to note that the temperature at night is likely to be much lower than during the day. For example, 10 degrees Celsius during the day and -8 degrees Celsius at night.
03
important nodes of coating construction
1. Construction time arrangement:
night temperature above 5 degrees C, all day during the day can be constructed.
temperatures are below 5C at night and can be constructed from 9am to 3pm during the day. Leave enough time in the afternoon to dry the paint film/putty molding, so as to avoid rework caused by the cold freezing bad paint at night.
2. Long drying time pay attention to the protection of finished products, beware of cold rain.
with the temperature reduction coating drying time is extended, if the next day encountered cold rain, easy to cause the surface of the paint flow marks, so the need to do a good job of product protection.
3, the construction surface should be yang construction
In order to speed up the coating drying and film, according to the morning and afternoon sun exposure arrangements for different walls for construction, when the sun shines directly on the wall when the wall temperature is high is conducive to the coating film.
, especially thick coatings such as putty and real stone paint and textured mortar, requires time and temperature to dry.
2, into the winter, putty construction precautions
Due to the low temperature in winter and spring, rainy days, construction work and rush, and the construction of the wall must ensure drying to ensure the effect of wall construction, so it is particularly important to master the wall drying time, to avoid the series of construction hazards.
standard construction process steps:
1, wall grass-roots testing: grass-roots empty drum, cracking, shedding, powdering. If there is a quality problem, it must be shoveled against the wall.
2, roll-coated wall, proportional to water, stirring evenly a one-time roll-on coating.
3, wall mud products can be filled, pasted Yin and Yang corner, wall large area to find flat.
4, putty first time, stirring well, batch scraping flat; putty second time, batch scraping more full, flat.
5, polishing, wall whitening, water-free printing when polishing the best.
6, if the use of water-resistant putty should be painted anti-alkali primer, the back of the anti-alkali.
7, latex paint finish 2 times.
spring construction precautions:
1, fill in the seams, paste yin and yang corner
1, use wall ni 95 paste yin and yang corner, fill the seam.
the gap between the gypsum plate is treated as a V-shaped shape. Gypsum board corner, into a 7-character shape, to ensure that the interface does not crack.
Gypsum board corner treatment for 7 glyphs
gypsum board interface treatment for V-shaped
3, do yin and yang angle: first to ensure that the angle to be flat, paste yin and yang angle first pile of ash, and then by the ruler straight, and then put the yin and yang corner bar into place, with aluminum alloy against the straight yin and yang angle bar pasted on top of the plaster bottom, strictly prohibited force squeeze, to ensure that yin and yang angle is not deformed, uneven.
paste yin and yang corner bar, with aluminum alloy strip light pressure using yin and yang angle bar and putty powder combination, strictly prohibited to squeeze deformation
2, construction of a bottom two sides
1, must be in accordance with the process of 1 bottom 2 sides of the construction, master the dry time.
2, if 1 bottom 1 side of the construction, will lead to poor wall leveling, polishing through the bottom, flowering, de-layering and other phenomena.
3, grinding
1, winter rainy weather, the evening must close the doors and windows, to prevent the wall to absorb moisture in the air, increase the structural force of the wall, should not be polished.
2, batch scraped the second time after the United States nest putty, the wall white, water-free printing immediately polished. The longer the dry through, the higher the composition force, the more difficult it is to polish.
3, polishing putty when the construction staff must do a good job of protection measures. Wear a mask, gloves, do not wear bare-chested, to avoid burning skin.
uncooled grinding appears to pull flowers, de-layering and other phenomena
four, re-alkali
1, the wall must brush anti-alkali primer, can play a back cover, anti-alkali effect (to avoid the appearance of wall paint hair flowers, color incogenity and other phenomena).
2, anti-alkali primer brush to dry for 1-2 days, dry through to do the paint. Brush the paint again and the last one must be dry.
3, brush color paint, proportional water, one-time uniform rolling brush, to avoid color achance, reflective, bottom and other phenomena.
4, the construction environment is: the temperature is greater than 5 degrees.
: The above data are theoretical data, due to different environment, different building materials, different construction habits, there are case differences, please specific construction process according to the actual situation and experience of the master to deal with accordingly.
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